Circle Piyokorota Works [CG+SS]

[Fake_Name]

Or, if you feel like a horrible person, you can probably get it off Share.

www.sharedb.info lists 4 files with ぴよころた in their titles.

Edit: Share is a Japanese File Sharing Program.

Edit 2: No, I won't tell you how to find, install, and get share working. Google will, however.